– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Sun 17 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Sun 17 May Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Sun 17 May Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummarySome drizzle, heaviest during Tue night. Very mild (max 13°C on Mon afternoon, min 6°C on Sun morning). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Very mild (max 18°C on Thu afternoon, min 9°C on Fri night). Wind will be generally light. | |||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | | |  | |  | | | |  | |  | | |  | |
rain shwrs | rain shwrs | some clouds | some clouds | some clouds | some clouds | light rain | light rain | rain shwrs | rain shwrs | some clouds | some clouds | clear | clear | clear | clear | rain shwrs | cloudy | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
0.1 | 0.1 | — | — | — | — | 0.1 | 0.5 | 0.5 | 0.1 | — | — | — | — | — | — | 0.1 | — | |
max °C | 10 | 12 | 11 | 11 | 13 | 11 | 9 | 10 | 10 | 12 | 15 | 13 | 15 | 18 | 15 | 15 | 17 | 14 |
min °C | 6 | 12 | 7 | 8 | 13 | 8 | 9 | 9 | 8 | 10 | 13 | 10 | 13 | 18 | 10 | 12 | 16 | 9 |
5 | 12 | 7 | 8 | 12 | 8 | 9 | 9 | 8 | 10 | 13 | 10 | 13 | 18 | 10 | 12 | 16 | 8 | |
1750 | 2100 | 2050 | 1900 | 2100 | 2100 | 1950 | 2050 | 2250 | 2650 | 3050 | 3200 | 2950 | 2850 | 2950 | 3100 | 3000 | 2800 | |
Cloud base (m) | 900 | 1650 | 2400 | 2100 | 1950 | 700 | 600 | 800 | 1600 | 1500 | 6200 | 3150 | 2850 | 2500 | 900 | 1700 | 1900 | |
 | 5:24 | — | — | 5:22 | — | — | 5:22 | — | — | 5:20 | — | — | 5:18 | — | — | 5:18 | — | — |
 | — | — | 8:44 | — | — | 8:45 | — | — | 8:46 | — | — | 8:47 | — | — | 8:50 | — | — | 8:51 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Some drizzle, heaviest during Tue night. Very mild (max 13°C on Mon afternoon, min 6°C on Sun morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 18°C on Thu afternoon, min 9°C on Fri night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.